We have recently acquired a PicoScope 4262 to measure the RF signal Phase Noise.
To do so, we demodulate the RF signal using a clean LO signal and we use the 4262 to measure the noise power density in the baseband signal.
The systems work well but some calibrations and corrections are needed and we must export the data and process it to calculate the real value.
The PicoScope 6 could easily do the job with some minors additions to the software, which are:
-Ta add a new log unit in the FTT mode, showing the power density converted to nominal 1Hz Bandwidth. To do so you just need to divide the current result by the resolution bandwidth (which should be the total bandwidth divided by the number of spectrum bins).
-To include the possibility of adding an offset to the Y axis in dB. It can be already done in the current SW revision changing the reference in the "Arbitrary dB" mode but you need do calculate it.
-To be able to change the Log unit shown in the y axis, when selecting the "Arbitrary dB" mode (I would like to see dBc/Hz).
Another feature which will be also interesting would be to calculate and represent the addition of a FTT log signal with another one previously stored in the memory. However I understand this is more complex to program.
This features will be usefull for other applications like sound and vibration analisys.